Slimline design means that the motormonkey is unobtrusive in your car and you can leave it plugged into your cigarette lighter when you're not using it, without worrying about draining your car's battery! The motormonkey is designed to be permanently located in the car's socket, sitting passively until you need it. Only when your mobile or other electronic device is connected does the internal intelligent circuit activate the supply of power to the unit. When your device is fully charged, motormonkey will automatically shut down - ready for when you need it next!